Factory led taillights

nate8868 · January 20, 2020

Hi everyone new to the forum here hoping for some help. I have an issue with my factory led taillights the passenger taillight doesnt illuminate also the passenger front halo light does not work. I have blinker brake and hazards just no running light or tail light. Ive checked all fuses for bcms all were good. Any help would be greatly appreciated

Lsgun1 · January 20, 2020

You can trace the wire harness out of the taillight down under the bed and verify the connection is clean and complete but unfortunately you probably need an entire tail light assembly.

nate8868 · January 20, 2020

I bought a new assembly already because my other one i knew was bad. I cracked the lens and got water in it thats why i was hoping it was a short or bad fuse. I will check harness tonight and let you know. Thank you for the response

nate8868 · January 21, 2020

I traced back harness all looked good. Even plugged in the left light to the right same problem so the issue is in the truck because both works work fine when hooked up to drivers side. Is there a bcm that controls just the right side of ghe truck? Because halo light on front is out as well

Lsgun1 · January 21, 2020

I couldn't tell you if there was I've never seen a wiring diagram for the circuit. If you can find one online or buy a service manual you'll be able to tell.

Frankielozano214 · January 22, 2020

I think it’s cheaper just to replace the OEM LED factory harness just to make sure it’s not the harness, dealership sells both for 70$, so one side should Be around 35$ I would buy that before spend on another taillight. But I also have a passenger side Ltz taillight for sell if u needa replacement HMU with a PM if you need it we can talk price.

Lsgun1 · January 22, 2020

You can easily check resistance through the harness so no need to replace it.

Frankielozano214 · January 22, 2020

Hmmmm damn wonder what the cause of this since it’s the front and back passenger side doing it, sounds like the daytime running lights (DRL LED) not working maybe a fuse? Maybe Phil might know @pgamboa

nate8868 · January 23, 2020

Sorry for the delay in response. Iv e foften busy the last few days. I will check resistance through harness this weekend. And i do not have a blown fuse.